Storage cabinet



FIG. 1 is a perspective view of a storage cabinet as seen from the front corner showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is an end view thereof, the opposite end being substantially a mirror image. 

The ornamental design for a storage cabinet, as shown and described. 